Jet engine technologies for interested amateurs
Last Updated: 16 December, 2002
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An Interesting Hybrid While trawling the various online patent databases in preparation for filing my own X-jet patents I came across a valveless design that was filed by the Pulse Jet Corporation of Delaware USA. Looking suspiciously like a mutant hybrid of the Chinese valveless and the Lockwood design, this engine is an interesting addition to the list of prior art in the valveless pulsejet area. The inventor claims a thrust of 250lbs for an engine with a combustion chamber of 240mm (around 9 inches) diameter and 18 inches in length. This engine, built from 1mm stainless steel, reportedly had an all-up weight of 37 pounds. Note: I find the inventor's mixture of imperial and metric terms in the patent document to be rather interesting and a little disconcerting. The patent document actually gives most of the other dimensions and angles for this engine so when I've finished transcribing it I'll create a set of dimensioned plans for those who might be interested in testing the veracity of the inventor's claims. You can download the full patent in PDF format by clicking on the thumbnail image below.
If anyone tries to duplicate this engine please let me know how you get on.
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